Terry writes the ratio x/9 = y/18 to help her reduce the size of a two-dimensional shape. If the new value of y is 5 units, what will be the value of x?
To find the value of x, we can set up a proportion with the new value of y:
x/9 = 5/18
Cross multiply to solve for x:
18x = 45
x = 45/18
x = 2.5
Therefore, the value of x will be 2.5 units.